A person who you barely know that you bring/send to a party to make things interesting. Can also be someone you find on the street a few blocks away.
Who's that ringer you left at my house last night? I couldn't get rid of that guy for days. He shit on my brother's rug.
by butchasound September 18, 2007
A car that has had it's number plate and serial numbers changed. this could be so that a recently stolen car cannot be identified by coppers
Terry Mccann (Dennis Waterman) in Minder to Des( George Layton) after he was set up by delivering a 'hot' car - "It was a ringer and you bloody rung it"
by minderlover July 10, 2008